EP0135449A1 - Glass fibres and composition suitable for making them - Google Patents

Glass fibres and composition suitable for making them Download PDF

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Publication number
EP0135449A1
EP0135449A1 EP84401844A EP84401844A EP0135449A1 EP 0135449 A1 EP0135449 A1 EP 0135449A1 EP 84401844 A EP84401844 A EP 84401844A EP 84401844 A EP84401844 A EP 84401844A EP 0135449 A1 EP0135449 A1 EP 0135449A1
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Prior art keywords
glass fibers
weight proportions
contain
compositions
glass
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EP84401844A
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German (de)
French (fr)
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EP0135449B1 (en
Inventor
Simone Le Moigne épouse Rey
Marcel Boivent
Guy Matzen
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Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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Priority to AT84401844T priority Critical patent/ATE26824T1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions

Definitions

  • the present invention relates to glass compositions for the manufacture of fibers. More particularly, it relates to compositions capable of being drawn in the form of staple fibers, using compressed air, jets of steam, hot gases or centrifugal force.
  • the glass compositions according to the invention will be drawn according to a method which consists in feeding molten glass to a hollow body rotating at high speed, and which has a peripheral wall perforated with numerous orifices through which the glass is projected horizontally under the action of centrifugal force. Primary fibers are thus formed which are then stretched from top to bottom by the action of flames or a gas stream.
  • the glass compositions commonly used for the manufacture of fibers result from a compromise between the properties desired for said fibers, the cost of the various raw materials and the constraints imposed by the devices for implementing the process.
  • the nature of the material used to manufacture the hollow body requires glasses whose physical characteristics allow the formation of primary fibers at temperatures below 1100 ° C.
  • compositions include a large number of constituents which require a multiplication of materials the first batch of vitrifiable materials necessary for the production of glass. This multiplication leads to the search for new sources of supply and an increase in storage and handling costs.
  • the subject of the invention is glass compositions which allow stable and regular melting in electric ovens.
  • the invention also relates to glass compositions in which the number of constituents is limited and which comprise only very few expensive constituents which are introduced in small quantities.
  • the invention also relates to glass compositions which exhibit excellent viscosity and devitrification characteristics.
  • the glass compositions according to the invention meet certain of the objectives set by virtue of the systematic introduction of fluorine into said compositions.
  • the viscosity and devitrification characteristics of the glasses of the invention are in particular governed by the introduction of the alkali oxides Na 2 0 and K 2 0 and by that of B 2 0 3 and of fluorine.
  • compositions of the invention comprise, in addition to boron and fluorine, the alkaline oxides Na 2 0 and K 2 0 which are introduced in weight proportions such that they respect the following inequality:
  • compositions of the glass fibers according to the invention include the following constituents in the proportions given below. by adding the alkaline oxides Na 2 0 and K 2 0 in weight proportions defined by the aforementioned inequality, B 2 03 and F obeying the inequality already exposed.
  • the glass fibers of the invention preferably have com positions comprising the constituents already mentioned according to the proportions below defining the following two fields: and:
  • compositions also include the Na 2 O and K 2 0 pxydes in proportions defined by the inequality mentioned above.
  • compositions of the invention which are of greatest interest, in terms of viscosity and devitrification characteristics and in economic terms, are those which contain boron and fluorine in weight proportions governed by the relationship:
  • compositions of the invention will be better appreciated through the following examples.
  • compositions of the glass fibers according to the invention exhibit a certain number of remarkable characteristics, as is apparent in particular from the examination of the preceding examples.
  • These glasses have a low viscosity; to take a well-known benchmark, the viscosity of 1000 poises, the corresponding temperature for the glasses of the invention is less than or equal to 1100 ° C.
  • these glasses devitrify at exceptional temperatures. tional low. Indeed, the upper devitrification temperature is generally less than 980 ° C and in the majority of cases less than 960 ° C.
  • the difference between the temperature corresponding to 1000 poises and the upper devitrification temperature is generally greater than 100 ° C and sometimes even exceeds 200 ° C.
  • the temperature corresponding to the zero growth rate is generally less than 920 ° C and in the majority of cases less than or equal to 900 ° C.
  • the temperature corresponding to the maximum rate of growth of the crystals is generally less than 840 ° C and very often less than or equal to 820 ° C.
  • the glasses of the invention are particularly suitable for the manufacture of staple fibers, capable of entering into the constitution of materials intended in particular for thermal and / or acoustic insulation.

Abstract

Glass fibers having the following constituents in the ranges of proportions indicated: SiO2, 57-70 wt. %; Al2O3, 2-7 wt. %; CaO, 5-10 wt. %; MgO, 0-4 wt. %; B2O3, 0-4.5 wt. %; and F, 0.5-4 wt. %; and wherein B2O3 and F are present in amounts according to the relationship: 3</=B2O3+1.5 F</=6.5 and wherein the fibers also contain the alkali oxides Na2O and K2O, in amounts according to the relationship: 16 wt. %<Na2O+K2O<20 wt. %. The glass fibers are used advantageously in thermal and/or acoustic insulation.

Description

La présente invention concerne des compositions de verre destinées à la fabrication de fibres. Plus particulièrement, elle a pour objet des compositions capables d'être étirées sous forme de fibres discontinues, à l'aide d'air comprimé, de jets de vapeur d'eau, de gaz chauds ou de la force centrifuge.The present invention relates to glass compositions for the manufacture of fibers. More particularly, it relates to compositions capable of being drawn in the form of staple fibers, using compressed air, jets of steam, hot gases or centrifugal force.

Les compositions de verre selon l'invention seront étirées selon un procédé qui consiste à alimenter en verre fondu un corps creux tournant à grande vitesse, et qui présente une paroi périphérique perforée de nombreux orifices au travers desquels le verre est projeté horizontalement sous l'action de la force centrifuge. Il se forme ainsi des fibres primaires qui sont ensuite étirées de haut en bas par l'action de flammes ou d'un courant gazeux.The glass compositions according to the invention will be drawn according to a method which consists in feeding molten glass to a hollow body rotating at high speed, and which has a peripheral wall perforated with numerous orifices through which the glass is projected horizontally under the action of centrifugal force. Primary fibers are thus formed which are then stretched from top to bottom by the action of flames or a gas stream.

Ce type de procédé et les dispositifs de mise en oeuvre dudit procédé sont décrits, par exemple, dans les brevets français publiés sous les numéros 1 382 917 et 2 443 436.This type of process and the devices for implementing said process are described, for example, in French patents published under the numbers 1 382 917 and 2 443 436.

Les compositions de verre couramment employées pour la fabrication de fibres résultent d'un compromis entre les propriétés souhaitées pour lesdites fibres, le coût des différentes matières premières et les contraintes imposées par les dispositifs de mise en oeuvre du procédé. Ainsi, par exemple, la nature de la matière utilisée pour fabriquer le corps creux exige des verres dont les caractéristiques physiques autorisent la formation de fibres primaires à des températures inférieures à 1100°C.The glass compositions commonly used for the manufacture of fibers result from a compromise between the properties desired for said fibers, the cost of the various raw materials and the constraints imposed by the devices for implementing the process. Thus, for example, the nature of the material used to manufacture the hollow body requires glasses whose physical characteristics allow the formation of primary fibers at temperatures below 1100 ° C.

La plupart des compositions de verres connues, mises au point pour la fabrication de fibres, satisfont en général les contraintes imposées mais au détriment, par exemple, de certains aspects économiques.Most of the known glass compositions, developed for the manufacture of fibers, generally satisfy the constraints imposed, but to the detriment, for example, of certain economic aspects.

Ainsi, beaucoup de compositions connues comprennent un grand nombre de constituants qui imposent une multiplication des matières premières vitrifiables nécessaires à l'élaboration du verre. Cette multiplication entraine la recherche de nouvelles sources d'approvisionnement et une augmentation des frais de stockage et de manutention.Thus, many known compositions include a large number of constituents which require a multiplication of materials the first batch of vitrifiable materials necessary for the production of glass. This multiplication leads to the search for new sources of supply and an increase in storage and handling costs.

Il faut également souligner que bon nombre des constituants introduits dans les compositions connues sont issus de matières premières onéreuses. La multiplication de tels constituants et/ou leur introduction dans la composition en quantités non négligeables majorent très sensiblement le coût du verre fabriqué.It should also be pointed out that many of the constituents introduced into the known compositions come from expensive raw materials. The multiplication of such constituents and / or their introduction into the composition in non-negligible quantities very significantly increase the cost of the glass produced.

Par ailleurs, la fusion de certaines compositions connues dans des fours chauffés au gaz provoquent souvent le départ de matières volatiles. Cette volatilisation conduit à augmenter dans le mélange vitrifiable la proportion des constituants les plus volatils et à installer des dispositifs d'épuration des fumées.Furthermore, the melting of certain known compositions in gas heated ovens often cause volatile materials to leave. This volatilization leads to increasing the proportion of the most volatile constituents in the vitrifiable mixture and to installing smoke purification devices.

L'utilisation relativement récente des fours électriques a conduit à une réduction des pertes par volatilisation. Cependant bien des compositions connues, très satisfaisantes à maints égards, ne sont pas adaptées à la fusion électrique. Lorsque ces compositions sont fondues dans des fours électriques, on observe que la couche de mélange vitrifiable qui recouvre le bain de verre n'est pas stable. Il se forme des poches gazeuses qui éclatent et qui découvrent de manière intermittente la surface du verre. Ces phénomènes occasionnent des pertes thermiques non négligeables ainsi que des pertes de matières par volatilisation qui, bien que moins importantes que celles observées dans les fours chauffés au gaz, sont encore gênantes.The relatively recent use of electric ovens has led to a reduction in volatilization losses. However, many known compositions, which are very satisfactory in many respects, are not suitable for electric fusion. When these compositions are melted in electric ovens, it is observed that the layer of vitrifiable mixture which covers the glass bath is not stable. Gas pockets are formed which burst and which intermittently uncover the surface of the glass. These phenomena cause significant thermal losses as well as losses of materials by volatilization which, although less significant than those observed in gas heated ovens, are still troublesome.

L'invention a pour objet des compositions de verres qui autorisent une fusion stable et régulière dans des fours électriques.The subject of the invention is glass compositions which allow stable and regular melting in electric ovens.

L'invention concerne aussi des compositions de verre dont le nombre de constituants est limité et qui ne comprennent que très peu de constituants onéreux lesquels sont introduits en faible quantité.The invention also relates to glass compositions in which the number of constituents is limited and which comprise only very few expensive constituents which are introduced in small quantities.

L'invention vise également des compositions de verre qui présentent d'excellentes caractéristiques de viscosité et de dévitrification.The invention also relates to glass compositions which exhibit excellent viscosity and devitrification characteristics.

Les compositions de verre selon l'invention répondent à certains des objectifs fixés grâce à l'introduction systématique de fluor dans lesdites compositions.The glass compositions according to the invention meet certain of the objectives set by virtue of the systematic introduction of fluorine into said compositions.

La Demanderesse a constaté sans pouvoir l'expliquer complètement que l'introduction de ce constituant avait pour effet d'assurer un échappement régulier des gaz provenant de la décomposition des matières premières, et, de ce fait, une fusion particulièrement stable.The Applicant has noted without being able to fully explain that the introduction of this constituent had the effect of ensuring a regular escape of the gases coming from the decomposition of the raw materials, and, therefore, a particularly stable melting.

Les caractéristiques de viscosité et de dévitrification des verres de l'invention sont notamment régies par l'introduction des oxydes alcalins Na20 et K20 et par celle de B203 et de fluor.The viscosity and devitrification characteristics of the glasses of the invention are in particular governed by the introduction of the alkali oxides Na 2 0 and K 2 0 and by that of B 2 0 3 and of fluorine.

L'influence respective du bore et du fluor sur la viscosité du verre est telle que ces deux constituants sont introduits dans la composition en prenant en considération l'effet respectif de chacun d'entre eux.The respective influence of boron and fluorine on the viscosity of the glass is such that these two constituents are introduced into the composition, taking into account the respective effect of each of them.

Pour contrôler avec précision l'effet global du bore et du fluor sur la viscosité tout en maintenant ces deux constituants dans des proportions pondérales économiquement acceptables, ceux-ci sont introduits dans les compositions en respectant l'inégalité suivante :
3 % ≼ B203 + 1,5 F ≼ 6,5 %
le facteur affectant le fluor permet de pondérer l'influence de ce constituant sur la viscosité et de la comparer directement à celle du bore. Ainsi, par exemple, 2 % en poids de fluor dans le verre ont pratiquement le même effet sur sa viscosité que 3 % en poids de B2O3.To precisely control the overall effect of boron and fluorine on viscosity while maintaining these two constituents in economically acceptable weight proportions, these are introduced into the compositions while respecting the following inequality:
3% ≼ B 2 0 3 + 1.5 F ≼ 6.5%
the factor affecting fluorine makes it possible to weigh the influence of this constituent on the viscosity and to compare it directly with that of boron. Thus, for example, 2% by weight of fluorine in the glass has practically the same effect on its viscosity as 3% by weight of B 2 O 3 .

Le respect de cette inégalité permet également d'optimiser l'influence du bore et du fluor sur la dévitrification, et concourt à l'obtention de verres commençant à cristalliser à des températures exceptionnellement basses.Respecting this inequality also makes it possible to optimize the influence of boron and fluorine on devitrification, and contributes to obtaining glasses which begin to crystallize at exceptionally low temperatures.

Pour abaisser la viscosité tout en obtenant d'excellentes caractéristiques de dévitrification, les compositions de l'invention comprennent, outre le bore et le fluor, les oxydes alcalins Na20 et K20 qui sont introduits selon des proportions pondérales telles qu'elles respectent l'inégalité suivante :

Figure imgb0001
To lower the viscosity while obtaining excellent devitrification characteristics, the compositions of the invention comprise, in addition to boron and fluorine, the alkaline oxides Na 2 0 and K 2 0 which are introduced in weight proportions such that they respect the following inequality:
Figure imgb0001

D'une manière générale les compositions des fibres de verre selon l'invention comprennent les constituants suivants selon les proportions données ci-après : .

Figure imgb0002
en ajoutant les oxydes alcalins Na20 et K20 dans des proportions pondérales définies par l'inégalité précitée, B203 et F obéissant à l'inégalité déjà exposée.Generally the compositions of the glass fibers according to the invention include the following constituents in the proportions given below.
Figure imgb0002
 by adding the alkaline oxides Na 2 0 and K 2 0 in weight proportions defined by the aforementioned inequality, B 2 03 and F obeying the inequality already exposed.

Les fibres de verre de l'invention ont de préférence des compositions comprenant les constituants déjà cités selon les proportions ci-après définissant les deux domaines suivants :

Figure imgb0003
et :
Figure imgb0004
 The glass fibers of the invention preferably have com positions comprising the constituents already mentioned according to the proportions below defining the following two fields:
Figure imgb0003
 and:
Figure imgb0004

Ces différentes compositions comprennent également les pxydes Na2O et K20 selon des proportions définies par l'inégalité citée précédemment.These different compositions also include the Na 2 O and K 2 0 pxydes in proportions defined by the inequality mentioned above.

Deux domaines renfermant des compositions avantageuses sont ainsi délimitées :

Figure imgb0005
et :
Figure imgb0006
 Two areas containing advantageous compositions are thus delimited:
Figure imgb0005
 and:
Figure imgb0006

Les compositions de ces deux derniers domaines qui présentent les meilleures caractéristiques sont celles respectant l'inégalité :

Figure imgb0007
The compositions of these last two areas which have the best characteristics are those respecting inequality:
Figure imgb0007

D'une manière générale, les compositions de l'invention qui présentent le plus grand intérêt, au plan des caractéristiques de viscosité et dévitrification et au plan économique, sont celles qui renferment du bore et du fluor selon des proportions pondérales régies par la relation :

Figure imgb0008
In general, the compositions of the invention which are of greatest interest, in terms of viscosity and devitrification characteristics and in economic terms, are those which contain boron and fluorine in weight proportions governed by the relationship:
Figure imgb0008

Les caractéristiques des compositions de l'invention seront mieux appréciées au travers des exemples suivants.The characteristics of the compositions of the invention will be better appreciated through the following examples.

EXEMPLE 1EXAMPLE 1

Figure imgb0009
Figure imgb0009

EXEMPLE 2EXAMPLE 2

Figure imgb0010
Figure imgb0010

EXEMPLE 3EXAMPLE 3

Figure imgb0011
Figure imgb0011

EXEMPLE 4EXAMPLE 4

Figure imgb0012
Figure imgb0012

EXEMPLE 5EXAMPLE 5

Figure imgb0013
Figure imgb0013

EXEMPLE 6EXAMPLE 6

Figure imgb0014
Figure imgb0014

EXEMPLE 7EXAMPLE 7

Figure imgb0015
Figure imgb0015

EXEMPLE 8EXAMPLE 8

Figure imgb0016
Figure imgb0016

EXEMPLE 9EXAMPLE 9

Figure imgb0017
Figure imgb0017

EXEMPLE 10EXAMPLE 10

Figure imgb0018
Figure imgb0018

Les compositions des fibres de verre selon l'invention présentent un certain nombre de caractéristiques remarquables ainsi qu'il ressort notamment de l'examen des exemples précédents.The compositions of the glass fibers according to the invention exhibit a certain number of remarkable characteristics, as is apparent in particular from the examination of the preceding examples.

Ces verres présentent une faible viscosité ; pour prendre un point de repère bien connu, la viscosité de 1000 poises, la température correspondante pour les verres de l'invention est inférieure ou égale à 1100°C.These glasses have a low viscosity; to take a well-known benchmark, the viscosity of 1000 poises, the corresponding temperature for the glasses of the invention is less than or equal to 1100 ° C.

De plus, ces verres dévitrifient à des températures exceptionnellement basses. En effet, la température supérieure de dévitrification est généralement inférieure à 980°C et dans la majorité des cas inférieure à 960°C.In addition, these glasses devitrify at exceptional temperatures. tional low. Indeed, the upper devitrification temperature is generally less than 980 ° C and in the majority of cases less than 960 ° C.

L'écart entre la température correspondant à 1000 poises et la température supérieure de dévitrification est généralement supérieur à 100°C et dépasse même parfois 200°C.The difference between the temperature corresponding to 1000 poises and the upper devitrification temperature is generally greater than 100 ° C and sometimes even exceeds 200 ° C.

La température correspondant à la vitesse de croissance nulle, appelée couramment liquidus, est généralement inférieure à 920°C et dans la majorité des cas inférieure ou égale à 900°C.The temperature corresponding to the zero growth rate, commonly called liquidus, is generally less than 920 ° C and in the majority of cases less than or equal to 900 ° C.

L'écart entre la température correspondant à la viscosité de 10000 poises et le liquidus est toujours largement positif. Cet écart est un critère important pour juger de l'aptitude au fibrage, pour des procédés de fibrage par centrifugation décrits par exemple dans les brevets précités, vis-à-vis de la dévitrification. En effet, lorsque cet écart est positif, les risques de dévitrification dans le dispositif de fibrage sont pratiquement nuls.The difference between the temperature corresponding to the viscosity of 10,000 poises and the liquidus is still largely positive. This difference is an important criterion for judging the suitability for fiber drawing, for fiber drawing processes by centrifugation described for example in the aforementioned patents, with respect to devitrification. In fact, when this difference is positive, the risks of devitrification in the fiberizing device are practically zero.

Enfin, la température correspondant à la vitesse maximale de croissance des cristaux est généralement inférieure à 840°C et très souvent inférieure ou égale à 820°C.Finally, the temperature corresponding to the maximum rate of growth of the crystals is generally less than 840 ° C and very often less than or equal to 820 ° C.

Quant à la vitesse maximale, elle reste dans des limites normalement admises pour ce genre de verres.As for the maximum speed, it remains within the limits normally accepted for this type of glass.

Grâce à cet ensemble de caractéristiques, les verres de l'invention conviennent particulièrement bien à la fabrication de fibres discontinues, susceptibles de rentrer dans la constitution de matériaux destinés notamment à l'isolation thermique et/ou acoustique.Thanks to this set of characteristics, the glasses of the invention are particularly suitable for the manufacture of staple fibers, capable of entering into the constitution of materials intended in particular for thermal and / or acoustic insulation.

Claims (8)

1. Fibres de verre, caractérisées par le fait qu'elles renferment les constituants suivants selon les proportions pondérales ci-après :
Figure imgb0019
ces deux derniers constituants étant incorporés selon des proportions pondérales régies par l'inégalité :
Figure imgb0020
lesdites fibres renfermant également les oxydes alcalins Na20 et K20 selon les proportions pondérales satisfaisant l'inégalité :
Figure imgb0021
 1. Glass fibers, characterized in that they contain the following constituents according to the following weight proportions:
Figure imgb0019
 these last two constituents being incorporated according to weight proportions governed by inequality:
Figure imgb0020
 the said fibers also containing the alkaline oxides Na 2 0 and K 2 0 according to the weight proportions satisfying the inequality:
Figure imgb0021
 2. Fibres de verre selon la revendication 1, caractérisées par le fait qu'elles renferment les constituants suivants selon les proportions pondérales ci-après :
Figure imgb0022
avec :
Figure imgb0023
et :
Figure imgb0024
 2. Glass fibers according to claim 1, characterized in that they contain the following constituents according to the following weight proportions:
Figure imgb0022
 with:
Figure imgb0023
 and:
Figure imgb0024
 3. Fibres de verre selon l'une des revendications précédentes, caractérisées par le fait qu'elles renferment les constituants suivants selon les proportions pondérales ci-après :
Figure imgb0025
avec :
3 % ≼B2O3 1,5 F ≼ 6,5 % et :
Figure imgb0026
 3. Glass fibers according to one of the preceding claims, characterized in that they contain the following constituents according to the weight proportions below:
Figure imgb0025
 with:
3% ≼B 2 O 3 1.5 F ≼ 6.5% and:
Figure imgb0026
 4. Fibres de verre selon l'une des revendications précédentes, caractérisées par le fait qu'elles renferment les constituants suivants selon les proportions pondérales ci-après :
Figure imgb0027
avec :
Figure imgb0028
 4. Glass fibers according to one of the preceding claims, characterized in that they contain the following constituents according to the weight proportions below:
Figure imgb0027
 with:
Figure imgb0028
 5. Fibres de verre selon la revendication 4, caractérisées par le fait qu'elles renferment les constituants suivants selon les proportions pondérales ci-après :
Figure imgb0029
avec :
Figure imgb0030
 5. Glass fibers according to claim 4, characterized in that they contain the following constituents according to the weight proportions below:
Figure imgb0029
 with:
Figure imgb0030
 6. Fibres de verre selon la revendication 5, caractérisées par le fait qu'elles renferment du bore et du fluor selon des proportions pondérales régies par l'inégalité suivante :
Figure imgb0031
 6. Glass fibers according to claim 5, characterized in that they contain boron and fluorine in weight proportions governed by the following inequality:
Figure imgb0031
 7. Fibres de verre selon l'une des revendications précédentes, caractérisées par le fait qu'elles renferment du bore et du fluor selon des proportions pondérales régies par la relation ci-après :
Figure imgb0032
 7. Glass fibers according to one of the preceding claims, characterized in that they contain boron and fluorine in weight proportions governed by the following relationship:
Figure imgb0032
 8. Matériau destiné à l'isolation thermique et/ou acoustique, caractérisé en ce qu'il comprend des fibres de verre dont la composition est définie par l'une quelconque des revendications précédentes.8. Material intended for thermal and / or acoustic insulation, characterized in that it comprises glass fibers, the composite of which tion is defined by any one of the preceding claims.
EP84401844A 1983-09-19 1984-09-18 Glass fibres and composition suitable for making them Expired EP0135449B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401844T ATE26824T1 (en) 1983-09-19 1984-09-18 GLASS FIBERS AND COMPOSITION FOR THE PRODUCTION.

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FR8314834A FR2552075B1 (en) 1983-09-19 1983-09-19 GLASS FIBERS AND COMPOSITION SUITABLE FOR THEIR MANUFACTURE
FR8314834 1983-09-19

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EP0135449A1 true EP0135449A1 (en) 1985-03-27
EP0135449B1 EP0135449B1 (en) 1987-04-29

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JP (1) JPS6121933A (en)
KR (1) KR920003941B1 (en)
AT (1) ATE26824T1 (en)
AU (1) AU580007B2 (en)
BR (1) BR8404544A (en)
CA (1) CA1229628A (en)
DE (1) DE3463370D1 (en)
DK (1) DK158150C (en)
EG (1) EG17754A (en)
FI (1) FI79692C (en)
FR (1) FR2552075B1 (en)
GR (1) GR80381B (en)
IE (1) IE58126B1 (en)
MX (1) MX161090A (en)
NO (1) NO158574C (en)
PT (1) PT79217A (en)
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399320A1 (en) * 1989-05-25 1990-11-28 Bayer Ag Glass fibers with increased biological compatibility
EP0412878A1 (en) * 1989-08-11 1991-02-13 Isover Saint-Gobain Glass fibres degradable in physiological medium
FR2650821A1 (en) * 1989-08-11 1991-02-15 Saint Gobain Isover Glass composition intended to be converted to fibres which are degradable in biological medium
FR2658182A1 (en) * 1990-02-09 1991-08-16 Saint Gobain Isover Glass fibres capable of decomposing in a biological medium
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US6034014A (en) * 1997-08-04 2000-03-07 Owens Corning Fiberglas Technology, Inc. Glass fiber composition
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US7651965B2 (en) 2002-01-04 2010-01-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7875566B2 (en) 2004-11-01 2011-01-25 The Morgan Crucible Company Plc Modification of alkaline earth silicate fibres
EP2094616B1 (en) 2006-09-13 2017-03-01 Saint-Gobain Isover Compositions for mineral wools

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USRE35557E (en) * 1990-06-01 1997-07-08 Isover-Saint Gobain Mineral fibers decomposable in a physiological medium
ATE211122T1 (en) * 1992-01-17 2002-01-15 Morgan Crucible Co USE OF INORGANIC FIBERS, SOLUBLE IN A SALT SOLUTION, AS INSULATING MATERIAL
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CN1043337C (en) * 1996-03-05 1999-05-12 四川威远康达企业(集团)公司 High-alkali glass ball and its production method
AU722826B2 (en) * 1996-04-24 2000-08-10 Owens Corning Glass compositions having high KI values and fibers therefrom
US5932347A (en) * 1996-10-31 1999-08-03 Owens Corning Fiberglas Technology, Inc. Mineral fiber compositions
FR2758322B1 (en) * 1997-01-14 1999-02-12 Saint Gobain Isover COMPOSITION OF ARTIFICIAL MINERAL WOOL
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US6358871B1 (en) 1999-03-23 2002-03-19 Evanite Fiber Corporation Low-boron glass fibers and glass compositions for making the same
US6527014B1 (en) 1999-11-30 2003-03-04 Owens Corning Fiberglas Technology, Inc. Flexible duct insulation having improved flame resistance
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Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP0399320A1 (en) * 1989-05-25 1990-11-28 Bayer Ag Glass fibers with increased biological compatibility
DE3917045A1 (en) * 1989-05-25 1990-11-29 Bayer Ag TOXICOLOGICAL UNSUITABLE GLASS FIBERS
EP0412878A1 (en) * 1989-08-11 1991-02-13 Isover Saint-Gobain Glass fibres degradable in physiological medium
FR2650821A1 (en) * 1989-08-11 1991-02-15 Saint Gobain Isover Glass composition intended to be converted to fibres which are degradable in biological medium
TR24496A (en) * 1989-08-11 1991-11-01 Saint Gobain Isover GLASS FIBER, SEPARABLE IN PHYSIOLOGICAL ENVIRONMENT
FR2658182A1 (en) * 1990-02-09 1991-08-16 Saint Gobain Isover Glass fibres capable of decomposing in a biological medium
US6180546B1 (en) 1992-01-17 2001-01-30 The Morgan Crucible Company Plc Saline soluble inorganic fibers
US5994247A (en) * 1992-01-17 1999-11-30 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US5955389A (en) * 1993-01-15 1999-09-21 The Morgan Crucible Company, P/C Saline soluble inorganic fibres
US5811360A (en) * 1993-01-15 1998-09-22 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US5928975A (en) * 1995-09-21 1999-07-27 The Morgan Crucible Company,Plc Saline soluble inorganic fibers
US6034014A (en) * 1997-08-04 2000-03-07 Owens Corning Fiberglas Technology, Inc. Glass fiber composition
US6987076B1 (en) 1998-09-15 2006-01-17 The Morgan Crucible Company Plc Bonded fibrous materials
US6861381B1 (en) 1999-09-10 2005-03-01 The Morgan Crucible Company Plc High temperature resistant saline soluble fibres
US7651965B2 (en) 2002-01-04 2010-01-26 The Morgan Crucible Company Plc Saline soluble inorganic fibres
US7875566B2 (en) 2004-11-01 2011-01-25 The Morgan Crucible Company Plc Modification of alkaline earth silicate fibres
EP2094616B1 (en) 2006-09-13 2017-03-01 Saint-Gobain Isover Compositions for mineral wools

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FI79692B (en) 1989-10-31
AU3286984A (en) 1985-03-28
MX161090A (en) 1990-07-25
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IE842262L (en) 1985-03-19
CA1229628A (en) 1987-11-24
FR2552075A1 (en) 1985-03-22
TR22571A (en) 1987-11-23
JPS6121933A (en) 1986-01-30
FI843628L (en) 1985-03-20
DK158150B (en) 1990-04-02
IE58126B1 (en) 1993-07-14
KR850002446A (en) 1985-05-13
FR2552075B1 (en) 1986-08-14
JPH0459257B2 (en) 1992-09-21
ZA846709B (en) 1985-04-24
BR8404544A (en) 1985-08-06
DK444684D0 (en) 1984-09-18
KR920003941B1 (en) 1992-05-18
NO158574B (en) 1988-06-27
ATE26824T1 (en) 1987-05-15
NO843715L (en) 1985-03-20
EG17754A (en) 1991-03-30
DK158150C (en) 1990-09-03
US4615988A (en) 1986-10-07
AU580007B2 (en) 1988-12-22
NO158574C (en) 1990-02-07
DK444684A (en) 1985-03-20
GR80381B (en) 1984-12-20
PT79217A (en) 1984-10-01
DE3463370D1 (en) 1987-06-04
EP0135449B1 (en) 1987-04-29
FI79692C (en) 1990-02-12

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